Award Data

GROWTH OF OEDERED Ga(1-x)In(x)P ON GaAs, AS A THIN FILM MATERIAL SHOWING VERY STRONG NONLINEAR OPTICAL (nlo) EFFECTS, WILL BE ACCOMPLISHED BY METALORGANIC CHEMICAL VAPOR DEPOSITION (MOCVD). IT IS WELL KNOWN THAT MOCVD-GROWN Ga(1-x)In(x)P DISPLAYS VERY STRONG ORDERING OF THE Ga- AND In-SUBLATTICES, AND THAT DEGREE OF ORDERING IS CONTROLLED BY GROWTH PARAMETERS. STRONG ORDERING SHOULD LEAD TO THE LA ...

One highly desired improvement for neutron sensing is an imaging neutron detector with high two-dimensional spatial resolution and a large detector area. At present, achievable real-time neutron imaging detector resolution is only about 1 mm. The innovation proposed is to adapt for neutron imaging the high spatial resolution Microchannel Plate (MCP) detector technology so widely used for detecting ...

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The III-V nitride semiconductor family affords many unique properties which make these materials attractive candidates for producing electronic and optoelectronic devices. Much progress has been made in epitaxial thin film growth of nitrides using metalorganic chemical vapor deposition (MOCVD) and molecular beam epitaxy (MBE) during the last decade. These efforts are hindered by the lack of lattic ...

A compact, high power pulse UV laser would find many immediate applications in a variety of fields including bio-sensing. high-density data storage, printing, photolithography, remote sensing and detection of explosive materials. In response to this need, CoreTek, Inc. proposes to develop and commercialize a compact, diode-pumped, micro-cavity UV laser to generate an optical pulse train of sub-nan ...

Photonic switches operating at wavelengths compatible with low-cost plastic fiber systems can enable the implementation of such systems for a wide variety of applications ranging from industrial machine control and local area networks to military applications such as phased array antennas. While recent advances in plastic fibers have led to the development of high speed fibers and efficient detect ...

Plastic Optical Fiber systems provide significantly lower costs, and complexity compared to glass optical fiber systems and are suitable for future short haul communication needs. While Silicon photodiodes provide excellent receiving capabilities there is no efficient tunable laser source for these wavelengths. CoreTek proposes the development of a low cost, manufacturable, widely tunable laser di ...

In a number of IR target-detection systems a small instantaneous field of view (IFOV) of the image sensor is required in order that the target be reliably detected against clutter. A modification (called Spatial Modulation) of the image sensor is proposed by which each IFOV sample or output pixel, is a measure -- not of the average of the scene intensity over the IFOV -- but of the high spatial-fr ...

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Low power electrostatic thrusters are greatly penalized by the lack of small efficient cathodes. Conventional hollow cathodes are relatively large and consume power and propellant at a rate approaching that required by the small thruster, thus greatly reducing its overall efficiency and Isp. An attractive alternative to hollow cathodes are fieId emission array (FEA) cathodes. These do not require ...